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  • Factor XII Assay

Factor XII Assay

Light Blue TopTube Type
Test ID   LAB310
EPIC Order
  FACTOR 12 ACTIVITY
CPT Code(s)   85280
Group/Individual Test   Individual
Laboratory   Core Laboartory
Tube Station   30 Routine: 888 STAT
Specimen Routine: 2.7 mL Blood/Light Blue Top Tube;  See Important Comments
  Pediatric: 1.8 mL Blood Pediatric Light Blue Top Tube
Stability
Unspun: 4 hours
Room temperature: 4 hours
Refrigerator: NO
Frozen: 14 days
Availability Routine: 24 Hours/Day
  STAT: YES
Turnaround Time   Stat 90 minutes; Routine 3 hrs
Reference Range Normal: 54-162% of Normal
  Critical: <10% of Normal

Internal Reference Testing Specimen Handling Instructions:

Platelet Poor; Aliquot and Freeze within 4 hours

Comments Deliver Immediately: If more than 2 Factor Assays are ordered: 2 Light Blue Top Tubes need to be drawn. Draw tube must be allowed to fill completely. Short draws will be rejected.

Reviewed by jcayless on December 13, 2017

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514

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